父母本不同行距配置对昆虫授粉效率的影响

为探讨昆虫为杂交大豆授粉的行为,提高授粉效率,以大豆细胞质雄性不育系JLCMS34A和保持系JLCMS34B为材料,研究父母本3种行距配置(T1、T2、T3)对昆虫授粉行为及产量构成的影响。结果表明:行距配置T2条件下昆虫授粉效率最高,母本单株粒数最多,为45.98个(2011年),与T1、T3差异达到显著水平,T3配置授粉效率最差,单株粒数最少,为32.06个(2012年),与T1、T2差异达到极显著水平。在吉林省洮南地区适当缩小父母本行距,增加母本间行距可有效促进昆虫授粉效率,提高结实率。

Effect of Different Parents Row Spacing on the Efficiency of Insect Pollination

This paper aims to study the relation between hybrid soybean distance and pollinating insects to improve the pollination efficiency.In this paper,soybean cytoplasmic male sterile line (JLCMS34A) and its maintainer line (JLCMS34B) were used to study the effect of three treatments of parents row-spacing (T1,T2 and T3) on the efficiency of insect pollination and the production of the hybrid seed of soybean.The results showed that the T2 row-spacing treatment had the highest efficiency of insect pollination and the maximum grain number per female plant,which differ significantly from that of T1 and T2 rowspacing treatment (P ＜ 0.05).The maximum grain number per female plant on T2 row-spacing treatment was 45.98 in 2011.In addition,the T3 row-spacing treatment had the lowest efficiency of insect pollination and the minimum grain number per female plant,which differ significantly from that of T1 and T2 row-spacing treatment (P ＜0.01).The minimum grain number per female plant on T3 row-spacing treatment was 32.06 in 2012.This paper concluded that narrowing parents row-spacing and widening female row-spacing in Taonan,Jilin province could effectively improve the efficiency of insect pollination and seed setting percentage.